WO2012029683A1 - Display device - Google Patents

Display device Download PDF

Info

Publication number
WO2012029683A1
WO2012029683A1 PCT/JP2011/069380 JP2011069380W WO2012029683A1 WO 2012029683 A1 WO2012029683 A1 WO 2012029683A1 JP 2011069380 W JP2011069380 W JP 2011069380W WO 2012029683 A1 WO2012029683 A1 WO 2012029683A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow path
housing
display panel
display device
ventilation
Prior art date
Application number
PCT/JP2011/069380
Other languages
French (fr)
Japanese (ja)
Inventor
雅哉 中道
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2010192575A external-priority patent/JP2012048145A/en
Priority claimed from JP2010192574A external-priority patent/JP5598915B2/en
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2012029683A1 publication Critical patent/WO2012029683A1/en
Priority to US13/780,433 priority Critical patent/US20130171921A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
    • G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20181—Filters; Louvers

Definitions

  • the present invention relates to a display device including a display panel.
  • the display device includes a housing that accommodates the display panel, and the housing is provided with an image display window that allows the screen of the display panel to be visually recognized from the outside (see, for example, Patent Document 1).
  • Patent Document 1 Conventionally, most display devices are designed on the assumption that they are installed indoors, and it has not been assumed that the screen of the display panel is heated by sunlight incident from the image display window.
  • a display device is permanently installed outdoors, or that the display device is mounted in another device such as a vending machine installed outdoors.
  • the conventional display device is permanently installed outdoors, or when the conventional display device is directly installed in another device such as a vending machine, the temperature of the screen of the display panel is excessively increased by sunlight. This may cause an abnormality in the operation of the display panel.
  • the housing has an intake portion for sucking air from the outside to the inside of the housing, and an exhaust for exhausting air from the inside of the housing to the outside.
  • a configuration is considered in which a flow path leading from the intake portion to the exhaust portion is formed inside the housing.
  • the housing is provided with a fan for flowing the air in the flow path from the intake section to the exhaust section, and the intake section is a filter that captures dust in the air sucked from the intake section. Is provided.
  • the housing in order to cool the display panel in the display device, includes an intake portion for sucking air from the outside to the inside of the housing, and an exhaust for discharging air from the inside of the housing to the outside.
  • a configuration is considered in which a flow path leading from the intake portion to the exhaust portion is formed inside the housing.
  • a plurality of fans that flow the air in the flow path from the intake section toward the exhaust section are provided in the intake section so as to be separated from each other.
  • a filter is provided for trapping dust.
  • This display device has a configuration in which air sent from a plurality of fans passes through the same space in the flow path. For this reason, air sent out from the fan collides with each other to generate turbulent flow and vortices. As a result, the turbulent flow and vortices hinder efficient cooling of the display panel.
  • a display device includes: A display panel; A housing for housing the display panel; A ventilation portion disposed in the casing and communicating with the outside and the inside of the casing, the ventilation end having a posture in which the opening end portion is directed to the side, and an insertion window is opened on the back; A fan for guiding air to the inside or outside of the housing through the ventilation portion; A filter that is inserted from the insertion window and is detachably installed in the ventilation portion;
  • the display device includes: A display panel; A housing for housing the display panel; A ventilation portion arranged in the housing and communicating the outside and the inside of the housing with each other; A plurality of fans disposed in the ventilation portion; A flow path formed inside the housing and extending from the ventilation part to reach the surface of the display panel; A partition member that is provided in the flow path and partitions the flow path into a plurality of spaces that communicate from the ventilation portion to the surface of the display panel; Have The fan is arranged so that one space in the flow path corresponds.
  • FIG. 1 is a perspective view of a display device according to an embodiment of the present invention as viewed from the front side.
  • FIG. 2 is a perspective view of the display device as seen from the back side.
  • FIG. 3 is a rear view of the display device.
  • FIG. 4 is an exploded perspective view of the display device as viewed from the front side.
  • FIG. 5 is an exploded perspective view of the display device as viewed from the back side.
  • 6 is a cross-sectional view taken along the line AA shown in FIG.
  • FIG. 7 is an enlarged view of region B shown in FIG.
  • FIG. 8 is an enlarged view of a region C shown in FIG.
  • FIG. 9 is a cross-sectional view taken along the line DD shown in FIG.
  • FIG. 10 is an enlarged view of region E shown in FIG. FIG.
  • FIG. 11 is an enlarged view of an F region shown in FIG.
  • FIG. 12 is a perspective view showing a second flow path forming member provided in the display device.
  • FIG. 13 is an enlarged view of the second flow path forming member.
  • FIG. 14 is a perspective view of the display device as seen from the bottom side.
  • FIG. 15 is an exploded perspective view of the display device viewed from the bottom side.
  • FIG. 16 is a perspective view of the front-side case half constituting the housing as viewed from above the rear side.
  • FIG. 17 is a perspective view of the front case half as viewed from the lower rear side.
  • FIG. 18 is an enlarged view of a cover member provided in the display device.
  • FIG. 19 is a cross-sectional view showing a modification of the drainage structure of the display device.
  • FIG. 19 is a cross-sectional view showing a modification of the drainage structure of the display device.
  • FIG. 20 is an exploded perspective view of an air intake section included in the display device.
  • FIG. 21 is an exploded perspective view of an insertion tool and an intake-side filter included in the display device.
  • FIG. 22 is a perspective view showing a fixed state of the insertion tool to the intake section.
  • FIG. 23 is a block diagram showing a configuration for notifying filter clogging in the display device.
  • FIG. 24 is an enlarged view of region G shown in FIG.
  • FIGS. 1 and 2 are perspective views of a display device according to an embodiment of the present invention as viewed from the front side and the back side, respectively.
  • FIG. 3 is a rear view of the display device.
  • 4 and 5 are exploded perspective views of the display device viewed from the front side and the back side, respectively.
  • the display device includes a housing (2).
  • the housing (2) includes a front case half (210) constituting the front wall (21) of the housing (2) and a rear wall (210) of the housing (2). 22) and the back side case half (220) are joined to each other.
  • the housing (2) contains a liquid crystal display panel (1) and a circuit board (11) for controlling the liquid crystal display panel (1).
  • the circuit board (11) It is installed on the back surface (12) of the liquid crystal display panel (1).
  • the display device according to the present embodiment is built in another device such as a vending machine. Of course, the display device can be used alone without being incorporated in another device such as a vending machine.
  • the front wall (21) of the housing (2) is provided with an image display window (20) that makes the screen (10) of the liquid crystal display panel (1) visible from the outside.
  • the image display window (20) is closed by a glass plate (202).
  • a capacitive touch panel is provided on the glass plate (202).
  • FIGS. 7 and 8 are enlarged views of the B region and the C region shown in FIG. 6, respectively.
  • the glass plate (202) has a shape and size larger than that of the image display window (20), and the outer edge (203) of the glass plate (202) has a housing ( It overlaps the front wall (21) of 2) from the inside. And inside the housing
  • the liquid crystal display panel (1) is installed at a position where a gap S is formed between the screen (10) and the glass plate (202).
  • a seal member (24) surrounding the image display window (20) is interposed between the joint surfaces of the front wall (21) and the glass plate (202). This prevents water from entering between the joint surfaces. Further, a buffer member (25) is interposed between the glass plate (202) and the presser fitting (23).
  • FIGS. 9 is a cross-sectional view taken along the line DD shown in FIG. 3, and FIGS. 10 and 11 are enlarged views of the E region and the F region shown in FIG. 9, respectively.
  • the housing (2) is placed on the back wall (22) at the right and left ends as viewed from the back.
  • An intake part (3) and an exhaust part (4) are provided to communicate the outside and the inside of 2) with each other.
  • the intake section (3) has a posture with its open end (30) facing rightward, while the exhaust section (4) has a posture with its open end (40) facing left. is doing.
  • the intake section (3) functions as a ventilation section that allows air to pass from the outside to the inside of the casing (2)
  • the exhaust section (4) is provided from the inside of the casing (2). It functions as a ventilation part that allows air to pass outside.
  • the intake portion (3) and the exhaust portion (4) both have a shape and dimensions that are wide in the vertical direction.
  • a flow path (5) extending from the intake section (3) to reach the exhaust section (4) is formed inside the housing (2).
  • the liquid crystal display panel (1) passes through a gap S between the screen (10) and the glass plate (202).
  • the flow path (5) extends from the first flow path section (51) passing in the horizontal direction on the screen (10) of the liquid crystal display panel (1) and the intake section (3) to display the liquid crystal display.
  • An intake side channel portion (52) that passes through the right side surface of the panel (1) and reaches the first channel portion (51), and a left side surface side of the liquid crystal display panel (1) that extends from the exhaust portion (4)
  • an exhaust-side flow path portion (53) that reaches the first flow path portion (51).
  • the first flow path portion (51) is formed by the screen (10) of the liquid crystal display panel (1) and the glass plate (202). Further, the intake-side flow path portion (52) and the exhaust-side flow path portion (53) are respectively formed by a first flow path forming member (61) and a second flow path forming member (62) as shown in FIGS. Is formed.
  • FIG. 12 is a perspective view showing the second flow path forming member (62), and FIG. 13 is an enlarged view of the second flow path forming member (62).
  • the back wall (62b) of the second flow path forming member (62) is formed with openings (621) at three locations, an upper stage, a middle stage, and a lower stage.
  • a slit-like passageway (622) extending vertically is provided in the front wall (62a) of the second flow path forming member (62).
  • Each opening (621) and passage (622) communicate with each other within the second flow path forming member (62).
  • each partition member (623) is a plate-like member that expands in the horizontal direction in the assembled state of the display device.
  • the space in the second flow path forming member (62) that is, the exhaust side flow path section (53)
  • the exhaust-side flow path portion (53) is divided into a plurality of spaces (531) to (531) communicated from the exhaust portion (4) to the first flow path portion (51) by the partition members (623) and (623). It is divided into.
  • the first flow path forming member (61) has the same configuration as the second flow path forming member (62). That is, referring to FIG. 10, the back wall (61b) of the first flow path forming member (61) has openings (611) formed at three locations thereof, and the front surface of the first flow path forming member (61).
  • the wall (61a) is provided with a slit-like passageway (612) that extends vertically.
  • the space in the first flow path forming member (61) (that is, the intake side flow path section (52)) is partitioned into three spaces (521) to (521) by the partition member. Each space (521) corresponds to one opening (611), and the space (521) communicates with the passage (612) from the corresponding opening (611).
  • the intake side flow path portion (52) is partitioned by the partition member into a plurality of spaces (521) to (521) communicating from the intake portion (3) to the first flow path portion (51).
  • each through hole (624) is formed in the space on the back surface (12) side of the liquid crystal display panel (1) and in the second flow path forming member (62) in the assembled state of the display device.
  • the space that is, the exhaust-side flow path portion (53)).
  • nine through holes (614) to (614) are formed in the side wall (61c) of the first flow path forming member (61), similarly to the second flow path forming member (62). Has been. Therefore, the space on the back surface (12) side of the liquid crystal display panel (1) and the space in the first flow path forming member (61) (that is, the intake side flow path section (52)) form the through hole (614). Are in communication with each other.
  • the casing (2) further passes through the back surface (12) side of the liquid crystal display panel (1) and flows from the intake side flow passage portion (52) to the exhaust side flow.
  • a second flow path part (54) extending to the path part (53) is formed, and a part of the flow path (5) is constituted by the second flow path part (54).
  • each fan (71) is provided corresponding to one space (521) in the intake-side flow path portion (52), and the inside of the space (521) It has a posture and a position where air can be sent to. Accordingly, as each fan (71) is driven, the air in the intake section (3) moves to the space (521) corresponding to the fan (71) as indicated by the solid arrow in FIG. The air flows in the horizontal direction in the space (521) without being mixed with the air flowing in the other space (521), and the first flow path portion (51) and the second flow path portion (54). Flow into. Along with this, air outside the casing is sucked from the opening end (30) of the intake section (3).
  • each fan (72) is provided corresponding to one space (531) in the exhaust side flow path portion (53), and the inside of the space (531) It has a posture and a position where air can be extracted from the air. Accordingly, when each fan (72) is driven, the first flow path portion (51) and the second flow path are moved to the space (531) corresponding to the fan (72) as shown by a solid arrow in FIG. The air in the section (54) flows in, and then the air flows in the horizontal direction in the space (531) and moves to the exhaust section (4). Along with this, air inside the housing is discharged from the open end (40) of the exhaust (4).
  • the first flow path portion (51) and the second flow path portion (54) are respectively introduced from the intake side as indicated by solid arrows in FIG. An air flow that moves in the horizontal direction toward the exhaust side is generated.
  • the intake portion (3) is provided with a pair of intake side filters (73) and (73) at positions near the open end portion (30).
  • the exhaust section (4) is provided with a pair of exhaust-side filters (74) and (74) in the vicinity of the opening end (40).
  • the intake filter (73) has a higher filter function (dust collection performance) than the exhaust filter (74).
  • the exhaust side filter (74) is composed of a mesh
  • the intake side filter (73) is composed of a mesh and a finer filter material than the mesh. (See FIG. 21).
  • the air flowing in the first flow path portion (51) absorbs heat accumulated in the screen (10) of the liquid crystal display panel (1), and the air flowing in the second flow path portion (54) Absorbs heat accumulated on the circuit board (11).
  • the air heated in the first flow path part (51) and the second flow path part (54) is discharged from the exhaust part (4) to the outside of the housing.
  • the air sent from each fan (71) in the intake section (3) passes through the space (521) corresponding to the fan (71) in another space (521). It flows in the horizontal direction without being mixed with the air flowing through the first flow path portion (51) and the second flow path portion (54). For this reason, the air sent out from the three fans (71) to (71) does not collide with each other in the intake side flow path section (52) to generate turbulence or vortex, and therefore the liquid crystal display panel (1 ) On the screen (10), that is, in the first flow path portion (51), air tends to flow uniformly in the horizontal direction. Further, air easily flows in the horizontal direction on the back surface (12) side of the liquid crystal display panel (1), that is, in the second flow path portion (54).
  • the entire screen (10) of the liquid crystal display panel (1) and the circuit board (11) are efficiently cooled by the air sucked from the air intake section (3). Therefore, even if the screen (10) of the liquid crystal display panel (1) is heated by sunlight incident from the image display window (20) and the circuit board (11) is driven to generate heat, the liquid crystal display panel (1) ) Of the screen (10) and the circuit board (11) are suppressed, and as a result, normal operations of the liquid crystal display panel (1) and the circuit board (11) are maintained. In addition, since air flows uniformly in the first flow path portion (51), unevenness in the sensitivity of the touch panel on the glass plate (202) hardly occurs.
  • the temperature difference between the glass plate (202) and the outside air is reduced by feeding cold air into the first flow path portion (51), and as a result, the glass Condensation hardly occurs on the inner surface of the plate (202).
  • the condensed water droplets are caused by the air flowing on the screen (10) of the liquid crystal display panel (1). Blown away. Therefore, it is difficult for water droplets to adhere to the screen (10) and the glass plate (202) of the liquid crystal display panel (1), and as a result, the liquid crystal display panel (1) is always in a state where the screen (10) is visible. Will be maintained.
  • the intake filter (73) has a higher filter function (dust collection performance) than the exhaust filter (74). Therefore, even when a large amount of air is inhaled from the intake section (3), most of the dust in the air is captured by the intake side filter (73). Therefore, air with a very small dust content is introduced into the housing, and as a result, the failure of the display panel (1) that may be caused by dust is prevented.
  • a pair of exhaust side filters (74) and (74) are provided in the exhaust part (4). Therefore, when the fans (71) and (72) are stopped, even if air flows from the outside to the inside of the housing (2) through the exhaust section (4), the dust in the air is removed from the exhaust filter ( 74) Captured by (74). Accordingly, the intrusion of dust into the housing is prevented, and as a result, the failure of the liquid crystal display panel (1) and the circuit board (11) that may be caused by the dust is prevented.
  • FIGS. 14 and 15 are a perspective view and an exploded perspective view, respectively, of the display device viewed from the bottom side.
  • the opening (260) to (260) that penetrates the bottom wall (26) from the inner surface to the outer surface is formed in the bottom wall (26) of the housing (2).
  • each opening (260) has a shape elongated in the horizontal direction, and the three openings (260) to (260) are arranged in a row in the horizontal direction.
  • FIGS. 16 and 17 are perspective views of the front case half (210) of the housing (2) as viewed from the upper rear side and the lower rear side, respectively.
  • the bottom wall (26) of the housing (2) has water on its inner surface that drains outside the housing to the openings (260) to (260).
  • a first groove (261) for guiding is recessed.
  • the pair of left and right side walls (27), (28) of the housing (2) has water on the inner surface of the bottom wall.
  • Second grooves (271) and (281) are formed to guide the top.
  • the upper surface wall (29) of the housing (2) has a third groove on its inner surface for guiding water to be discharged outside the housing to the side wall (27). (291) is formed.
  • a cover member (262) for closing the central region of each opening (260) is detachably attached to the bottom wall (26) of the housing (2).
  • the cover member (262) is formed with a fitting portion (263) that fits into the opening (260), and the fitting portion (263) is opened.
  • the cover member (262) is attached to the bottom wall (26) of the housing (2) as shown in FIG.
  • the display device has a configuration capable of cleaning the inside of the housing (the screen (10) of the liquid crystal display panel (1)).
  • an opening is formed in the presser fitting (23) so that the cleaning tool can be inserted onto the screen (10) of the liquid crystal display panel (1).
  • a cover member (262) is attached to the bottom wall (26) of the housing (2) as shown in FIG. 14, thereby preventing dust from entering each opening (260). Will be suppressed.
  • the cover member (262) is attached to the bottom wall (26)
  • the central region of each opening (260) is blocked by the cover member (262), while both end regions remain exposed. Therefore, the exposed area can function as a drain outlet.
  • the water if water enters the housing due to some reason, for example, when the display device is installed outdoors and the seal member (24) deteriorates, the water moves onto the bottom wall (26) by gravity. Then, it is discharged from the exposed area (drainage port) of each opening (260).
  • the display device has a drainage structure for discharging water generated inside the housing to the outside of the housing.
  • a drainage structure is realized because the display device of this embodiment has a configuration in which air flows in the horizontal direction in the housing (2).
  • the second grooves (271) and (281) are formed on the inner surfaces of the side walls (27) and (28), and the third groove (291) is formed on the inner surface of the upper surface wall (29). Is formed. Therefore, water generated inside the casing for some reason is efficiently guided onto the bottom wall (26).
  • a first groove (261) is formed on the inner surface of the bottom wall (26). Therefore, the water on the bottom wall (26) can easily move to the exposed area (drain) of each opening (260), and as a result, the water is efficiently discharged from the area (drain). Become.
  • FIG. 19 is a cross-sectional view showing a modification of the drainage structure of the display device.
  • the first groove (261) is provided with a raised portion (264) extending in the lateral direction along the inner surface of the bottom wall (26). 264) and the front wall (21) of the housing (2).
  • At least one of the side walls (27), (28) and the upper surface wall (29) of the housing (2) has a rod-like cleaning.
  • An opening for inserting the tool into the housing may be formed, and a cover member for closing the opening may be detachably attached.
  • FIG. 20 is an exploded perspective view of the intake section (3).
  • a pair of intake windows (311) for inserting a pair of intake side filters (73), (73) into the intake section (3) are respectively provided in the back portion (31) of the intake section (3).
  • the display device includes an insertion tool (32) that can be inserted and removed from each insertion window (311), and an intake side filter (73) is attached to the insertion tool (32).
  • FIG. 21 is an exploded perspective view of the insertion tool (32) and the intake side filter (73).
  • each insertion tool (32) includes a storage case (320) formed by joining two case halves (321) and (321), and a support for supporting the storage case (320). It consists of a body (322).
  • each intake side filter (73) includes a mesh (731) and a filter material (732) finer than the mesh (731). The mesh (731) and the filter material (732) are accommodated in the accommodating case (320) of the insertion tool (32) in a state where they are overlapped.
  • each insertion tool (32) is formed with a pair of upper and lower flanges (323) and (323), and each flange (323) is inserted into the support (322).
  • the tool (32) is inserted into the corresponding insertion window (311), it comes into contact with the back part (31) of the intake part (3).
  • one arm portion (323) corresponds to each arm portion (33) (33).
  • each arm portion (33) has a predetermined rotation angle and a collar portion (323) corresponding to the arm portion (33).
  • the hook part (323) is sandwiched between the arm part (33) and the back part (31) of the intake part (3) as shown in FIG. However, it is fixed to the intake portion (3) in a state of being inserted into the corresponding insertion window (311).
  • the arm portion (33) is locked to the intake portion (3) at the predetermined rotation angle between each arm portion (33) and the back portion (31) of the intake portion (3).
  • a locking mechanism is provided to prevent the rotation.
  • the locking mechanism includes a locking projection (312) provided on the back portion (31) of the intake portion (3) and a locking projection (312) provided on the tip of the arm portion (33). It is comprised from the latching recessed part (331) engaged with.
  • the fixing mechanism for fixing each insertion tool (32) to the intake portion (3) in a state of being inserted into the corresponding insertion window (311) includes the flange portion (323) and the arm portion (33). And the locking mechanism.
  • the operation part (332) for user operation is provided in the front-end
  • the insertion side filter (73) is detachably installed in the intake portion (3) by inserting the corresponding insertion tool (32) from each insertion window (311). Will be.
  • each insertion window (311) is formed in the back part (31) of the intake part (3). Therefore, even when the duct is attached to the opening end (30) of the intake section (3), the intake side filter (73) can be easily replaced.
  • the intake side filter (73) can be replaced from the back side of the display device, it is easy for a service person or the like to replace the intake side filter (73).
  • the configuration that enables the filter replacement from the back side of the display device in this way is particularly effective when the display device is built in another device such as a vending machine.
  • the display device it is possible to design the fixing mechanism with a small height. Therefore, the display device does not need to be increased in thickness although it has a configuration in which the intake side filter (73) is replaced from the back side.
  • the exhaust unit (4) has the same configuration as the intake unit (3). However, the exhaust side filter (74) provided in the exhaust part (4) is comprised only from the mesh.
  • FIG. 23 is a block diagram showing a configuration for notifying filter clogging in the display device.
  • the display device includes a temperature sensor (81) that acquires temperature information that changes according to the temperature of the liquid crystal display panel (1), and a velocity of air that flows in the intake section (3).
  • a wind speed sensor (82) for acquiring changing wind speed information, a notification section (83) for notifying clogging of the intake side filter (73), and temperature information and wind speed sensor (82) acquired by the temperature sensor (81) Is provided with a control unit (84) for controlling the notification operation of the notification unit (83) based on the wind speed information acquired by the above, and a memory (85) in which various types of information are recorded.
  • the temperature sensor (81) is installed in the vicinity of the liquid crystal display panel (1) in the intake-side flow path portion (52). Further, the wind speed sensor (82) is installed at a position between the intake side filter (73) and the fan (71) in the intake section (3).
  • the intake side filter (73) is clogged, the temperature in the intake side flow path (52) rises due to the heat from the liquid crystal display panel (1) as compared with the case where there is no clogging.
  • the speed of the air discharged through the intake side filter (73) becomes larger than when there is no clogging.
  • FIG. 24 is an enlarged view of the G region shown in FIG.
  • a through-hole (221) that penetrates the rear wall (22) from the inner surface to the outer surface is formed in the rear wall (22) of the housing (2).
  • the notification unit (83) is configured by an LED (Light Emitting Diode), and is provided on the back surface (12) side of the liquid crystal display panel (1) inside the housing.
  • the notification unit (83) has a posture directed to the through hole (221). Therefore, the user can recognize the light from the notification unit (83) through the through hole (221) from the back side of the housing (2).
  • a plurality of liquid crystal display panels (1) for adjusting the image quality and the like at positions near the formation region of the through holes (221). Adjustment buttons (222) to (222) are provided.
  • the control unit (84) is configured on the circuit board (11). As shown in FIG. 23, the control unit (84) determines whether or not the temperature of the liquid crystal display panel (1) is higher than a predetermined temperature based on the temperature information acquired by the temperature sensor (81). And a second determination unit (842) for determining whether or not the speed of the air flowing in the intake unit (3) is greater than a predetermined speed based on the wind speed information acquired by the wind speed sensor (82). Is included.
  • temperature information and wind speed information are respectively acquired by the temperature sensor (81) and the wind speed sensor (82). These pieces of information are recorded in the memory (85) as initial information.
  • the predetermined temperature and the predetermined speed are set based on the initial information, and these information are also recorded in the memory (85).
  • the control unit (84) further instructs the notification unit (83) to execute the notification operation based on the determination results of the first determination unit (841) and the second determination unit (842). Part (843). Specifically, the command unit (843) determines that the temperature of the liquid crystal display panel (1) is higher than a predetermined temperature by the first determination unit (841), or intakes the air by the second determination unit (842). When it is determined that the speed of the air in the section (3) is greater than the predetermined speed, the notification section (83) is instructed to perform a notification operation.
  • the notification unit (83) notifies the clogging of the intake side filter (73) by turning on or blinking the LED in response to a command from the command unit (843).
  • the notification unit (83) can notify that the intake side filter (73) is clogged, that is, that it is time to replace the intake side filter (73).
  • the user can recognize light from the notification unit (83) through the through hole (221) from the back side of the housing (2). Therefore, a user such as a serviceman who often visually recognizes the back surface of the display device can easily recognize clogging of the intake side filter (73).
  • the situation can be notified immediately after the intake side filter (73) is clogged. Accordingly, it is possible to prevent the temperature of the liquid crystal display panel (1) from excessively rising due to the time for replacing the intake side filter (73).
  • another temperature sensor (86) is installed in the vicinity of the liquid crystal display panel (1) in the exhaust side flow path portion (53), and the exhaust portion (4 ),
  • Another wind speed sensor (87) is installed at a position between the exhaust side filter (74) and the fan (72), and the temperature information acquired by the temperature sensor (86) and the wind speed sensor (87 ) May notify the clogging of the exhaust filter (74) by the notification unit (83). If the exhaust filter (74) is clogged, the temperature in the exhaust channel (53) rises due to the heat from the liquid crystal display panel (1), compared to when there is no clogging. The speed of air immediately before passing through the exhaust filter (74) is smaller than when there is no clogging.
  • one of the intake-side flow path portion (52) and the exhaust-side flow path portion (53) extends through the upper surface side of the liquid crystal display panel (1), and the other The flow path portion may extend through the lower surface side of the liquid crystal display panel (1).
  • the first flow path portion (51) passes in the vertical direction on the screen (10) of the liquid crystal display panel (1).
  • an intake portion (3) and an exhaust portion (4) may be provided on the rear wall (22) of the housing (2) in a vertical relationship.
  • the display device may have a configuration in which only one of the fans (71) and (72) is provided. Further, in the display device, the control unit (84) performs the notification operation of the notification unit (83) based only on information acquired by any one of the temperature sensor (81) and the wind speed sensor (82). You may control.
  • the various configurations employed in the display device are not limited to display devices having a liquid crystal display panel, but may be applied to display devices having various display panels such as plasma display panels and organic EL (Electro-Luminescence) display panels. I can do it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

This display device is provided with: a display panel; a case for housing the display panel; a ventilation unit (3) which is disposed on the case, links the exterior of the case with the interior thereof, and is characterized by having a posture in which opening ends (30) are disposed towards the side and by being disposed with insertion windows (311) opening to the rear section (31); fans (71) for guiding air to the interior or the exterior of the case by passing air through the ventilation unit; and filters (73) inserted into the insertion window and disposed within the ventilation unit in a detachable manner.

Description

表示装置Display device
　本発明は、表示パネルを具えた表示装置に関する。 The present invention relates to a display device including a display panel.
　表示装置は、表示パネルを収容する筐体を具え、該筐体には、表示パネルの画面を外部から視認可能にする画像表示窓が設けられている（例えば、特許文献１参照）。従来、表示装置の殆どが屋内に設置することを前提として設計されたものであり、画像表示窓から入射する太陽光によって表示パネルの画面が加熱されることは、想定されていなかった。 The display device includes a housing that accommodates the display panel, and the housing is provided with an image display window that allows the screen of the display panel to be visually recognized from the outside (see, for example, Patent Document 1). Conventionally, most display devices are designed on the assumption that they are installed indoors, and it has not been assumed that the screen of the display panel is heated by sunlight incident from the image display window.
特開２００５－２８６９８７号公報JP 2005-286987 A
　近年、屋外に表示装置を常設することや、屋外に設置されている自動販売機等の他の装置内に表示装置を搭載することが考えられている。しかしながら、従来の表示装置をそのまま屋外に常設し、或いは従来の表示装置をそのまま自動販売機等の他の装置内に搭載した場合、太陽光によって表示パネルの画面の温度が過度に上昇し、これにより表示パネルの動作に異常が発生する虞がある。 In recent years, it has been considered that a display device is permanently installed outdoors, or that the display device is mounted in another device such as a vending machine installed outdoors. However, when the conventional display device is permanently installed outdoors, or when the conventional display device is directly installed in another device such as a vending machine, the temperature of the screen of the display panel is excessively increased by sunlight. This may cause an abnormality in the operation of the display panel.
　そこで、上記表示装置において表示パネルを冷却するべく、筐体に、該筐体の外部から内部へ空気を吸入するための吸気部と、該筐体の内部から外部へ空気を排出するための排気部とを設け、筐体内部に、吸気部から排気部へ通じる流路を形成した構成が考えられている。この構成においては、筐体に、流路内の空気を吸気部から排気部へ向けて流すファンが設けられ、又、吸気部に、該吸気部から吸入される空気中の塵を捕捉するフィルタが設けられる。 Therefore, in order to cool the display panel in the display device, the housing has an intake portion for sucking air from the outside to the inside of the housing, and an exhaust for exhausting air from the inside of the housing to the outside. A configuration is considered in which a flow path leading from the intake portion to the exhaust portion is formed inside the housing. In this configuration, the housing is provided with a fan for flowing the air in the flow path from the intake section to the exhaust section, and the intake section is a filter that captures dust in the air sucked from the intake section. Is provided.
　この表示装置において、上記フィルタの交換を可能にするべく、吸気部の開口端部側からフィルタを交換する構成が考えられている。その一方で、この表示装置において、吸気部及び排気部の開口端部から水が浸入することを防止するべく、該開港端部にダクトを設けた構成が考えられている。しかし、この構成においては、吸気部の開口端部側からフィルタを交換することが困難となる。 In this display device, a configuration in which the filter is exchanged from the opening end side of the intake portion is considered in order to enable exchange of the filter. On the other hand, in this display device, a configuration in which a duct is provided at the open end of the port is considered in order to prevent water from entering from the open end of the intake and exhaust. However, in this configuration, it is difficult to replace the filter from the opening end side of the intake portion.
　また、上記表示装置において表示パネルを冷却するべく、筐体に、該筐体の外部から内部へ空気を吸入するための吸気部と、該筐体の内部から外部へ空気を排出するための排気部とを設け、筐体内部に、吸気部から排気部へ通じる流路を形成した構成が考えられている。この構成においては、吸気部に、流路内の空気を吸気部から排気部へ向けて流す複数のファンが離間して設けられ、又、吸気部に、該吸気部から吸入される空気中の塵を捕捉するフィルタが設けられる。 In addition, in order to cool the display panel in the display device, the housing includes an intake portion for sucking air from the outside to the inside of the housing, and an exhaust for discharging air from the inside of the housing to the outside. A configuration is considered in which a flow path leading from the intake portion to the exhaust portion is formed inside the housing. In this configuration, a plurality of fans that flow the air in the flow path from the intake section toward the exhaust section are provided in the intake section so as to be separated from each other. A filter is provided for trapping dust.
　この表示装置は、複数のファンから送り出された空気が流路内の同じ空間を通過する構成となっていた。このため、ファンから送り出された空気どうしが衝突して乱流や渦が生じ、その結果、該乱流や渦が、表示パネルを効率良く冷却することの妨げとなっていた。 This display device has a configuration in which air sent from a plurality of fans passes through the same space in the flow path. For this reason, air sent out from the fan collides with each other to generate turbulent flow and vortices. As a result, the turbulent flow and vortices hinder efficient cooling of the display panel.
　本発明に係る表示装置は、
　表示パネルと、
　該表示パネルを収容する筐体と、
　該筐体に配備され、筐体の外部と内部とを互いに連通させる通気部であって、開口端部を側方へ向けた姿勢を有し、背部に挿入窓が開設された通気部と、
　該通気部を通じて筺体内部又は筺体外部へ空気を導くファンと、
　前記挿入窓から挿入し、通気部内へ着脱可能に設置されるフィルタと、
　を具える。 A display device according to the present invention includes:
A display panel;
A housing for housing the display panel;
A ventilation portion disposed in the casing and communicating with the outside and the inside of the casing, the ventilation end having a posture in which the opening end portion is directed to the side, and an insertion window is opened on the back;
A fan for guiding air to the inside or outside of the housing through the ventilation portion;
A filter that is inserted from the insertion window and is detachably installed in the ventilation portion;
With
　また、本発明に係る表示装置は、
　表示パネルと、
　該表示パネルを収容する筐体と、
　該筐体に配備され、筐体の外部と内部とを互いに連通させる通気部と、
　該通気部内に配備される複数のファンと、
　筐体内部に形成され、前記通気部から延びて表示パネルの表面に達する流路と、
　該流路内に設けられ、前記通気部から表示パネルの表面へ通じる複数の空間に前記流路を仕切る仕切り部材と、
　を有しており、
　前記ファンは、前記流路内の１つの空間が対応するよう配備される。 Moreover, the display device according to the present invention includes:
A display panel;
A housing for housing the display panel;
A ventilation portion arranged in the housing and communicating the outside and the inside of the housing with each other;
A plurality of fans disposed in the ventilation portion;
A flow path formed inside the housing and extending from the ventilation part to reach the surface of the display panel;
A partition member that is provided in the flow path and partitions the flow path into a plurality of spaces that communicate from the ventilation portion to the surface of the display panel;
Have
The fan is arranged so that one space in the flow path corresponds.
図１は、本発明の一実施形態に係る表示装置を前面側から見た斜視図である。FIG. 1 is a perspective view of a display device according to an embodiment of the present invention as viewed from the front side. 図２は、該表示装置を背面側から見た斜視図である。FIG. 2 is a perspective view of the display device as seen from the back side. 図３は、該表示装置の背面図である。FIG. 3 is a rear view of the display device. 図４は、該表示装置を前面側から見た分解斜視図である。FIG. 4 is an exploded perspective view of the display device as viewed from the front side. 図５は、該表示装置を背面側から見た分解斜視図である。FIG. 5 is an exploded perspective view of the display device as viewed from the back side. 図６は、図３に示されるＡ－Ａ線に沿う断面図である。6 is a cross-sectional view taken along the line AA shown in FIG. 図７は、図６に示されるＢ領域の拡大図である。FIG. 7 is an enlarged view of region B shown in FIG. 図８は、図６に示されるＣ領域の拡大図である。FIG. 8 is an enlarged view of a region C shown in FIG. 図９は、図３に示されるＤ－Ｄ線に沿う断面図である。FIG. 9 is a cross-sectional view taken along the line DD shown in FIG. 図１０は、図９に示されるＥ領域の拡大図である。FIG. 10 is an enlarged view of region E shown in FIG. 図１１は、図９に示されるＦ領域の拡大図である。FIG. 11 is an enlarged view of an F region shown in FIG. 図１２は、上記表示装置が具える第２流路形成部材を示した斜視図である。FIG. 12 is a perspective view showing a second flow path forming member provided in the display device. 図１３は、該第２流路形成部材の拡大図である。FIG. 13 is an enlarged view of the second flow path forming member. 図１４は、上記表示装置を底面側から見た斜視図である。FIG. 14 is a perspective view of the display device as seen from the bottom side. 図１５は、上記表示装置を底面側から見た分解斜視図である。FIG. 15 is an exploded perspective view of the display device viewed from the bottom side. 図１６は、筐体を構成する前面側ケース半体を背面側上方から見た斜視図である。FIG. 16 is a perspective view of the front-side case half constituting the housing as viewed from above the rear side. 図１７は、該前面側ケース半体を背面側下方から見た斜視図である。FIG. 17 is a perspective view of the front case half as viewed from the lower rear side. 図１８は、上記表示装置が具えるカバー部材の拡大図である。FIG. 18 is an enlarged view of a cover member provided in the display device. 図１９は、上記表示装置が有する排水構造の変形例を示した断面図である。FIG. 19 is a cross-sectional view showing a modification of the drainage structure of the display device. 図２０は、上記表示装置が具える吸気部の分解斜視図である。FIG. 20 is an exploded perspective view of an air intake section included in the display device. 図２１は、上記表示装置が具える挿入具及び吸気側フィルタの分解斜視図である。FIG. 21 is an exploded perspective view of an insertion tool and an intake-side filter included in the display device. 図２２は、上記吸気部への挿入具の固定状態を示した斜視図である。FIG. 22 is a perspective view showing a fixed state of the insertion tool to the intake section. 図２３は、上記表示装置について、フィルタの目詰まりを報知するための構成を示したブロック図である。FIG. 23 is a block diagram showing a configuration for notifying filter clogging in the display device. 図２４は、図２に示されるＧ領域の拡大図である。FIG. 24 is an enlarged view of region G shown in FIG.
　以下、本発明の実施の形態につき、図面に沿って具体的に説明する。
　１．表示装置の構成
　図１及び図２はそれぞれ、本発明の一実施形態に係る表示装置を前面側及び背面側から見た斜視図である。図３は、該表示装置の背面図である。図４及び図５はそれぞれ、該表示装置を前面側及び背面側から見た分解斜視図である。図１～図３に示す様に、該表示装置は筐体(２)を具えている。図４及び図５に示す様に、筐体(２)は、筐体(２)の前面壁(21)を構成する前面側ケース半体(210)と、筐体(２)の背面壁(22)を構成する背面側ケース半体(220)とを互いに接合して構成されている。そして、筐体(２)の内部には、液晶表示パネル(１)と、該液晶表示パネル(１)を制御する回路基板(11)とが収容されており、該回路基板(11)は、液晶表示パネル(１)の背面(12)に設置されている。尚、本実施形態に係る表示装置は、自動販売機等の他の装置に内蔵されるものである。勿論、該表示装置を、自動販売機等の他の装置に内蔵せずに単体で使用することも可能である。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
1. Configuration of Display Device FIGS. 1 and 2 are perspective views of a display device according to an embodiment of the present invention as viewed from the front side and the back side, respectively. FIG. 3 is a rear view of the display device. 4 and 5 are exploded perspective views of the display device viewed from the front side and the back side, respectively. As shown in FIGS. 1 to 3, the display device includes a housing (2). As shown in FIGS. 4 and 5, the housing (2) includes a front case half (210) constituting the front wall (21) of the housing (2) and a rear wall (210) of the housing (2). 22) and the back side case half (220) are joined to each other. The housing (2) contains a liquid crystal display panel (1) and a circuit board (11) for controlling the liquid crystal display panel (1). The circuit board (11) It is installed on the back surface (12) of the liquid crystal display panel (1). The display device according to the present embodiment is built in another device such as a vending machine. Of course, the display device can be used alone without being incorporated in another device such as a vending machine.
　ここで、筐体(２)の前面壁(21)には、液晶表示パネル(１)の画面(10)を外部から視認可能にする画像表示窓(20)が設けられている。又、画像表示窓(20)は、ガラス板(202)によって塞がれている。尚、本実施形態においては、ガラス板(202)に、静電容量式のタッチパネルが設けられている。 Here, the front wall (21) of the housing (2) is provided with an image display window (20) that makes the screen (10) of the liquid crystal display panel (1) visible from the outside. The image display window (20) is closed by a glass plate (202). In this embodiment, a capacitive touch panel is provided on the glass plate (202).
　図６は、図３に示されるＡ－Ａ線に沿う断面図であり、図７及び図８はそれぞれ、図６に示されるＢ領域及びＣ領域の拡大図である。図７及び図８に示す様に、ガラス板(202)は、画像表示窓(20)より大きい形状及び寸法を有しており、ガラス板(202)の外縁部(203)が、筐体(２)の前面壁(21)に内側から重なっている。そして、筐体(２)の内部には、ガラス板(202)を前面壁(21)へ向けて押圧する押さえ金具(23)が設けられており、該押さえ金具(23)の押圧力により、前面壁(21)の内面にガラス板(202)が接合されている。一方、液晶表示パネル(１)は、その画面(10)とガラス板(202)との間に隙間Ｓが形成されることとなる位置に設置されている。 6 is a cross-sectional view taken along the line AA shown in FIG. 3, and FIGS. 7 and 8 are enlarged views of the B region and the C region shown in FIG. 6, respectively. As shown in FIGS. 7 and 8, the glass plate (202) has a shape and size larger than that of the image display window (20), and the outer edge (203) of the glass plate (202) has a housing ( It overlaps the front wall (21) of 2) from the inside. And inside the housing | casing (2), the pressing metal fitting (23) which presses a glass plate (202) toward a front wall (21) is provided, and with the pressing force of this pressing metal fitting (23), A glass plate (202) is joined to the inner surface of the front wall (21). On the other hand, the liquid crystal display panel (1) is installed at a position where a gap S is formed between the screen (10) and the glass plate (202).
　図７及び図８に示す様に、前面壁(21)とガラス板(202)との接合面間には、画像表示窓(20)を包囲するシール部材(24)が介在しており、これによって、接合面間からの水の浸入が防止されている。又、ガラス板(202)と押さえ金具(23)との間には、緩衝部材(25)が介在している。 As shown in FIGS. 7 and 8, a seal member (24) surrounding the image display window (20) is interposed between the joint surfaces of the front wall (21) and the glass plate (202). This prevents water from entering between the joint surfaces. Further, a buffer member (25) is interposed between the glass plate (202) and the presser fitting (23).
　図９は、図３に示されるＤ－Ｄ線に沿う断面図であり、図１０及び図１１はそれぞれ、図９に示されるＥ領域及びＦ領域の拡大図である。図９～図１１に示す様に（図１～図５も参照）、筐体(２)を背面壁(22)には、背面側から見て右側及び左側の端部にそれぞれ、筐体(２)の外部と内部とを互いに連通させる吸気部(３)及び排気部(４)が設けられている。そして、吸気部(３)は、その開口端部(30)を右側方へ向けた姿勢を有する一方、排気部(４)は、その開口端部(40)を左側方へ向けた姿勢を有している。ここで、吸気部(３)は、筐体(２)の外部から内部へ向けて空気を通過させる通気部として機能するものであり、排気部(４)は、筐体(２)の内部から外部へ向けて空気を通過させる通気部として機能するものである。尚、本実施形態においては、吸気部(３)及び排気部(４)は何れも、鉛直方向について幅の広い形状及び寸法を有している。 9 is a cross-sectional view taken along the line DD shown in FIG. 3, and FIGS. 10 and 11 are enlarged views of the E region and the F region shown in FIG. 9, respectively. As shown in FIGS. 9 to 11 (see also FIGS. 1 to 5), the housing (2) is placed on the back wall (22) at the right and left ends as viewed from the back. An intake part (3) and an exhaust part (4) are provided to communicate the outside and the inside of 2) with each other. The intake section (3) has a posture with its open end (30) facing rightward, while the exhaust section (4) has a posture with its open end (40) facing left. is doing. Here, the intake section (3) functions as a ventilation section that allows air to pass from the outside to the inside of the casing (2), and the exhaust section (4) is provided from the inside of the casing (2). It functions as a ventilation part that allows air to pass outside. In the present embodiment, the intake portion (3) and the exhaust portion (4) both have a shape and dimensions that are wide in the vertical direction.
　図９に示す様に、筐体(２)の内部には、吸気部(３)から延びて排気部(４)に達する流路(５)が形成されており、該流路(５)は、液晶表示パネル(１)の画面(10)とガラス板(202)との間の隙間Ｓを通過している。具体的には、流路(５)は、液晶表示パネル(１)の画面(10)上を水平方向に通過する第１流路部(51)と、吸気部(３)から延びて液晶表示パネル(１)の右側面側を通過して第１流路部(51)に達する吸気側流路部(52)と、排気部(４)から延びて液晶表示パネル(１)の左側面側を通過して第１流路部(51)に達する排気側流路部(53)とから構成されている。 As shown in FIG. 9, a flow path (5) extending from the intake section (3) to reach the exhaust section (4) is formed inside the housing (2). The liquid crystal display panel (1) passes through a gap S between the screen (10) and the glass plate (202). Specifically, the flow path (5) extends from the first flow path section (51) passing in the horizontal direction on the screen (10) of the liquid crystal display panel (1) and the intake section (3) to display the liquid crystal display. An intake side channel portion (52) that passes through the right side surface of the panel (1) and reaches the first channel portion (51), and a left side surface side of the liquid crystal display panel (1) that extends from the exhaust portion (4) And an exhaust-side flow path portion (53) that reaches the first flow path portion (51).
　ここで、第１流路部(51)は、液晶表示パネル(１)の画面(10)とガラス板(202)とによって形成されている。又、吸気側流路部(52)及び排気側流路部(53)はそれぞれ、図５及び図９に示す如く第１流路形成部材(61)及び第２流路形成部材(62)によって形成されている。 Here, the first flow path portion (51) is formed by the screen (10) of the liquid crystal display panel (1) and the glass plate (202). Further, the intake-side flow path portion (52) and the exhaust-side flow path portion (53) are respectively formed by a first flow path forming member (61) and a second flow path forming member (62) as shown in FIGS. Is formed.
　図１２は、第２流路形成部材(62)を示した斜視図であり、図１３は、該第２流路形成部材(62)の拡大図である。図１２及び図１３に示す様に（図１１も参照）、第２流路形成部材(62)の背面壁(62b)には、その上段、中段、下段の３箇所に開口(621)が形成されている。又、第２流路形成部材(62)の前面壁(62a)には、上下に長く延びたスリット状の通路(622)が設けられている。そして、各開口(621)と通路(622)とは、第２流路形成部材(62)内で互いに連通している。 FIG. 12 is a perspective view showing the second flow path forming member (62), and FIG. 13 is an enlarged view of the second flow path forming member (62). As shown in FIGS. 12 and 13 (see also FIG. 11), the back wall (62b) of the second flow path forming member (62) is formed with openings (621) at three locations, an upper stage, a middle stage, and a lower stage. Has been. Further, a slit-like passageway (622) extending vertically is provided in the front wall (62a) of the second flow path forming member (62). Each opening (621) and passage (622) communicate with each other within the second flow path forming member (62).
　図１３に示す様に、第２流路形成部材(62)内には、その背面壁(62b)から前面壁(62a)まで延び、更には通路(622)内にまで延びた２つの仕切り部材(623)(623)が設けられている。ここで、各仕切り部材(623)は、表示装置の組立て状態において水平方向に拡がることとなる板状の部材である。これによって、第２流路形成部材(62)内の空間（即ち排気側流路部(53)）が、３つの空間(531)～(531)に仕切られている。具体的には、各空間(531)には、１つの開口(621)が対応しており、該空間(531)は、これに対応する開口(621)から通路(622)へ通じている。斯くして、排気側流路部(53)は、仕切り部材(623)(623)によって、排気部(４)から第１流路部(51)へ通じる複数の空間(531)～(531)に仕切られている。 As shown in FIG. 13, in the second flow path forming member (62), two partition members extending from the rear wall (62b) to the front wall (62a) and further into the passage (622). (623) (623) are provided. Here, each partition member (623) is a plate-like member that expands in the horizontal direction in the assembled state of the display device. As a result, the space in the second flow path forming member (62) (that is, the exhaust side flow path section (53)) is partitioned into three spaces (531) to (531). Specifically, one opening (621) corresponds to each space (531), and the space (531) communicates with the passage (622) from the corresponding opening (621). Thus, the exhaust-side flow path portion (53) is divided into a plurality of spaces (531) to (531) communicated from the exhaust portion (4) to the first flow path portion (51) by the partition members (623) and (623). It is divided into.
　第１流路形成部材(61)は、第２流路形成部材(62)と同様の構成を有している。即ち、図１０を参照して、第１流路形成部材(61)の背面壁(61b)には、その３箇所に開口(611)が形成され、第１流路形成部材(61)の前面壁(61a)には、上下に長く延びたスリット状の通路(612)が設けられている。又、第１流路形成部材(61)内の空間（即ち吸気側流路部(52)）が、仕切り部材によって３つの空間(521)～(521)に仕切られている。そして、各空間(521)には、１つの開口(611)が対応しており、該空間(521)は、これに対応する開口(611)から通路(612)へ通じている。斯くして、吸気側流路部(52)は、仕切り部材によって、吸気部(３)から第１流路部(51)へ通じる複数の空間(521)～(521)に仕切られている。 The first flow path forming member (61) has the same configuration as the second flow path forming member (62). That is, referring to FIG. 10, the back wall (61b) of the first flow path forming member (61) has openings (611) formed at three locations thereof, and the front surface of the first flow path forming member (61). The wall (61a) is provided with a slit-like passageway (612) that extends vertically. Further, the space in the first flow path forming member (61) (that is, the intake side flow path section (52)) is partitioned into three spaces (521) to (521) by the partition member. Each space (521) corresponds to one opening (611), and the space (521) communicates with the passage (612) from the corresponding opening (611). Thus, the intake side flow path portion (52) is partitioned by the partition member into a plurality of spaces (521) to (521) communicating from the intake portion (3) to the first flow path portion (51).
　更に、図１２及び図１３に示す様に、第２流路形成部材(62)の側面壁(62c)には、鉛直方向に配列された９つの貫通孔(624)～(624)が形成されており、第２流路形成部材(62)内の３つの空間(531)～(531)には、貫通孔(624)が３つずつ対応している。ここで、各貫通孔(624)は、図１１に示す様に表示装置の組立て状態において、液晶表示パネル(１)の背面(12)側の空間と、第２流路形成部材(62)内の空間（即ち排気側流路部(53)）とを連通させるものである。 Furthermore, as shown in FIGS. 12 and 13, nine through holes (624) to (624) arranged in the vertical direction are formed in the side wall (62c) of the second flow path forming member (62). Three through holes (624) correspond to the three spaces (531) to (531) in the second flow path forming member (62). Here, as shown in FIG. 11, each through hole (624) is formed in the space on the back surface (12) side of the liquid crystal display panel (1) and in the second flow path forming member (62) in the assembled state of the display device. The space (that is, the exhaust-side flow path portion (53)).
　図１０を参照して、第１流路形成部材(61)の側面壁(61c)には、第２流路形成部材(62)と同様、９つの貫通孔(614)～(614)が形成されている。従って、液晶表示パネル(１)の背面(12)側の空間と、第１流路形成部材(61)内の空間（即ち吸気側流路部(52)）とが、貫通孔(614)を介して互いに連通している。 Referring to FIG. 10, nine through holes (614) to (614) are formed in the side wall (61c) of the first flow path forming member (61), similarly to the second flow path forming member (62). Has been. Therefore, the space on the back surface (12) side of the liquid crystal display panel (1) and the space in the first flow path forming member (61) (that is, the intake side flow path section (52)) form the through hole (614). Are in communication with each other.
　斯くして、筐体(２)の内部には更に、図９に示す様に、液晶表示パネル(１)の背面(12)側を通過して吸気側流路部(52)から排気側流路部(53)まで延びる第２流路部(54)が形成されており、該第２流路部(54)によって流路(５)の一部が構成されている。 Thus, as shown in FIG. 9, the casing (2) further passes through the back surface (12) side of the liquid crystal display panel (1) and flows from the intake side flow passage portion (52) to the exhaust side flow. A second flow path part (54) extending to the path part (53) is formed, and a part of the flow path (5) is constituted by the second flow path part (54).
　図４に示す様に、吸気部(３)内には、３つのファン(71)～(71)が前方へ向けて配備されている。具体的には、図１０に示す様に、各ファン(71)は、吸気側流路部(52)内の１つの空間(521)に対応して設けられており、該空間(521)内へ空気を送り込むことが可能な姿勢及び位置を有している。従って、各ファン(71)が駆動することにより、図１０にて実線矢印で示す様に、該ファン(71)に対応する空間(521)へ吸気部(３)内の空気が移動し、その後、その空気は、該空間(521)内を、別の空間(521)内を流れる空気と混ざることなく水平方向に流れて、第１流路部(51)及び第２流路部(54)へ流れ込む。これに伴って、吸気部(３)の開口端部(30)からは、筐体外部の空気が吸入されることになる。 As shown in FIG. 4, three fans (71) to (71) are arranged in the air intake section (3) facing forward. Specifically, as shown in FIG. 10, each fan (71) is provided corresponding to one space (521) in the intake-side flow path portion (52), and the inside of the space (521) It has a posture and a position where air can be sent to. Accordingly, as each fan (71) is driven, the air in the intake section (3) moves to the space (521) corresponding to the fan (71) as indicated by the solid arrow in FIG. The air flows in the horizontal direction in the space (521) without being mixed with the air flowing in the other space (521), and the first flow path portion (51) and the second flow path portion (54). Flow into. Along with this, air outside the casing is sucked from the opening end (30) of the intake section (3).
　図４に示す様に、排気部(４)内には、３つのファン(72)～(72)が前方へ向けて配備されている。具体的には、図１１に示す様に、各ファン(72)は、排気側流路部(53)内の１つの空間(531)に対応して設けられており、該空間(531)内から空気を引き出すことが可能な姿勢及び位置を有している。従って、各ファン(72)が駆動することにより、図１１にて実線矢印で示す様に、該ファン(72)に対応する空間(531)へ第１流路部(51)及び第２流路部(54)内の空気がそれぞれ流れ込み、その後、その空気は、該空間(531)内を水平方向に流れて排気部(４)へ移動する。これに伴って、排気部(４)の開口端部(40)からは、筐体内部の空気が排出されることになる。 As shown in FIG. 4, in the exhaust part (4), three fans (72) to (72) are arranged facing forward. Specifically, as shown in FIG. 11, each fan (72) is provided corresponding to one space (531) in the exhaust side flow path portion (53), and the inside of the space (531) It has a posture and a position where air can be extracted from the air. Accordingly, when each fan (72) is driven, the first flow path portion (51) and the second flow path are moved to the space (531) corresponding to the fan (72) as shown by a solid arrow in FIG. The air in the section (54) flows in, and then the air flows in the horizontal direction in the space (531) and moves to the exhaust section (4). Along with this, air inside the housing is discharged from the open end (40) of the exhaust (4).
　よって、ファン(71)(72)が駆動することにより、図９にて実線矢印で示す如く、第１流路部(51)及び第２流路部(54)内にはそれぞれ、吸気側から排気側へ向けて水平方向に移動する空気の流れが発生することになる。 Therefore, when the fans (71) and (72) are driven, the first flow path portion (51) and the second flow path portion (54) are respectively introduced from the intake side as indicated by solid arrows in FIG. An air flow that moves in the horizontal direction toward the exhaust side is generated.
　図２及び図１０に示す様に、吸気部(３)には、その開口端部(30)近傍の位置に一対の吸気側フィルタ(73)(73)が設けられている。又、図１及び図１１に示す様に、排気部(４)には、その開口端部(40)近傍の位置に一対の排気側フィルタ(74)(74)が設けられている。ここで、吸気側フィルタ(73)は、排気側フィルタ(74)よりも高いフィルタ機能（集塵性能）を有している。具体的には、排気側フィルタ(74)がメッシュから構成されたものであるのに対し、吸気側フィルタ(73)は、メッシュと、該メッシュよりも目の細かいフィルタ素材とを重ね合わせて構成されたものである（図２１参照）。 As shown in FIGS. 2 and 10, the intake portion (3) is provided with a pair of intake side filters (73) and (73) at positions near the open end portion (30). As shown in FIGS. 1 and 11, the exhaust section (4) is provided with a pair of exhaust-side filters (74) and (74) in the vicinity of the opening end (40). Here, the intake filter (73) has a higher filter function (dust collection performance) than the exhaust filter (74). Specifically, the exhaust side filter (74) is composed of a mesh, whereas the intake side filter (73) is composed of a mesh and a finer filter material than the mesh. (See FIG. 21).
　上記表示装置においては、ファン(71)(72)の駆動により、筐体外部の冷たい空気が吸気部(３)から筐体内部へ吸入され、該空気は、流路(５)に沿って排気部(４)まで流れることになる。このとき、第１流路部(51)内を流れる空気は、液晶表示パネル(１)の画面(10)に溜まった熱を吸収し、第２流路部(54)内を流れる空気は、回路基板(11)に溜まった熱を吸収する。一方、第１流路部(51)及び第２流路部(54)内で温められた空気は、排気部(４)から筐体外部へ排出される。 In the display device, by driving the fans (71) and (72), cold air outside the casing is sucked into the casing from the intake section (3), and the air is exhausted along the flow path (5). Part (4). At this time, the air flowing in the first flow path portion (51) absorbs heat accumulated in the screen (10) of the liquid crystal display panel (1), and the air flowing in the second flow path portion (54) Absorbs heat accumulated on the circuit board (11). On the other hand, the air heated in the first flow path part (51) and the second flow path part (54) is discharged from the exhaust part (4) to the outside of the housing.
　ここで、上記表示装置においては、吸気部(３)内の各ファン(71)から送り出された空気が、該ファン(71)に対応する空間(521)内を、別の空間(521)内を流れる空気と混ざることなく水平方向に流れて、第１流路部(51)及び第２流路部(54)へ流れ込む。このため、３つのファン(71)～(71)から送り出された空気どうしが吸気側流路部(52)内で衝突して乱流や渦を生じることがなく、従って、液晶表示パネル(１)の画面(10)上、即ち第１流路部(51)内において、空気が水平方向へ均一に流れ易い。又、液晶表示パネル(１)の背面(12)側、即ち第２流路部(54)内において、空気が水平方向へ均一に流れ易い。 Here, in the display device described above, the air sent from each fan (71) in the intake section (3) passes through the space (521) corresponding to the fan (71) in another space (521). It flows in the horizontal direction without being mixed with the air flowing through the first flow path portion (51) and the second flow path portion (54). For this reason, the air sent out from the three fans (71) to (71) does not collide with each other in the intake side flow path section (52) to generate turbulence or vortex, and therefore the liquid crystal display panel (1 ) On the screen (10), that is, in the first flow path portion (51), air tends to flow uniformly in the horizontal direction. Further, air easily flows in the horizontal direction on the back surface (12) side of the liquid crystal display panel (1), that is, in the second flow path portion (54).
　よって、上記表示装置によれば、吸気部(３)から吸入された空気によって、液晶表示パネル(１)の画面(10)全体及び回路基板(11)が効率良く冷却されることになる。従って、画像表示窓(20)から入射する太陽光によって液晶表示パネル(１)の画面(10)が加熱され、又、回路基板(11)が駆動して発熱した場合でも、液晶表示パネル(１)の画面(10)及び回路基板(11)の温度上昇が抑制され、その結果、液晶表示パネル(１)及び回路基板(11)の正常な動作が維持されることになる。又、第１流路部(51)内において空気が均一に流れることにより、ガラス板(202)上のタッチパネルの感度にむらが発生し難い。 Therefore, according to the display device, the entire screen (10) of the liquid crystal display panel (1) and the circuit board (11) are efficiently cooled by the air sucked from the air intake section (3). Therefore, even if the screen (10) of the liquid crystal display panel (1) is heated by sunlight incident from the image display window (20) and the circuit board (11) is driven to generate heat, the liquid crystal display panel (1) ) Of the screen (10) and the circuit board (11) are suppressed, and as a result, normal operations of the liquid crystal display panel (1) and the circuit board (11) are maintained. In addition, since air flows uniformly in the first flow path portion (51), unevenness in the sensitivity of the touch panel on the glass plate (202) hardly occurs.
　更に、外気の温度が低い場合であっても、第１流路部(51)内に冷たい空気が送り込まれることにより、ガラス板(202)と外気との温度差が小さくなり、その結果、ガラス板(202)の内面に結露が発生し難くなる。又、ガラス板(202)の内面や液晶表示パネル(１)の画面(10)に結露が発生した場合でも、液晶表示パネル(１)の画面(10)上を流れる空気によって、結露した水滴が吹き飛ばされる。従って、液晶表示パネル(１)の画面(10)及びガラス板(202)には水滴が付着し難く、その結果、液晶表示パネル(１)は、常時、その画面(10)が視認可能な状態で維持されることになる。 Further, even when the temperature of the outside air is low, the temperature difference between the glass plate (202) and the outside air is reduced by feeding cold air into the first flow path portion (51), and as a result, the glass Condensation hardly occurs on the inner surface of the plate (202). Even if condensation occurs on the inner surface of the glass plate (202) or the screen (10) of the liquid crystal display panel (1), the condensed water droplets are caused by the air flowing on the screen (10) of the liquid crystal display panel (1). Blown away. Therefore, it is difficult for water droplets to adhere to the screen (10) and the glass plate (202) of the liquid crystal display panel (1), and as a result, the liquid crystal display panel (1) is always in a state where the screen (10) is visible. Will be maintained.
　上記表示装置においては、ファン(71)(72)が駆動した場合、筐体内部に、吸気部(３)を通じて筐体外部の空気が大量に流れ込むことになる。ここで、吸気側フィルタ(73)は、排気側フィルタ(74)よりも高いフィルタ機能（集塵性能）を有している。従って、吸気部(３)から大量の空気が吸入された場合でも、該空気中の殆どの塵が、吸気側フィルタ(73)によって捕捉されることになる。よって、筐体内部には、塵の含有量が著しく小さい空気が導入され、その結果、塵が原因となって生じ得る表示パネル(１)の故障が防止されることになる。 In the above display device, when the fans (71) and (72) are driven, a large amount of air outside the casing flows into the casing through the intake section (3). Here, the intake filter (73) has a higher filter function (dust collection performance) than the exhaust filter (74). Therefore, even when a large amount of air is inhaled from the intake section (3), most of the dust in the air is captured by the intake side filter (73). Therefore, air with a very small dust content is introduced into the housing, and as a result, the failure of the display panel (1) that may be caused by dust is prevented.
　又、上記表示装置においては、排気部(４)に一対の排気側フィルタ(74)(74)が設けられている。従って、ファン(71)(72)の駆動を停止した場合に、排気部(４)を通じて筐体(２)の外部から内部へ空気が流れ込んだとしても、該空気中の塵が排気側フィルタ(74)(74)によって捕捉される。従って、筐体内部への塵の侵入が防止され、その結果、塵が原因となって生じ得る液晶表示パネル(１)及び回路基板(11)の故障が防止されることになる。 Further, in the above display device, a pair of exhaust side filters (74) and (74) are provided in the exhaust part (4). Therefore, when the fans (71) and (72) are stopped, even if air flows from the outside to the inside of the housing (2) through the exhaust section (4), the dust in the air is removed from the exhaust filter ( 74) Captured by (74). Accordingly, the intrusion of dust into the housing is prevented, and as a result, the failure of the liquid crystal display panel (1) and the circuit board (11) that may be caused by the dust is prevented.
　２．排水構造、及び筐体内部の清掃を可能した構成
　図１４及び図１５はそれぞれ、上記表示装置を底面側から見た斜視図及び分解斜視図である。図１５に示す様に、筐体(２)の底面壁(26)には、該底面壁(26)をその内面から外面へ貫通する３つの開口(260)～(260)が形成されている。ここで、各開口(260)は、横方向に細長く延びた形状を有しており、３つの開口(260)～(260)は横方向に一列に並んでいる。 2. Drainage structure and configuration capable of cleaning inside casing FIGS. 14 and 15 are a perspective view and an exploded perspective view, respectively, of the display device viewed from the bottom side. As shown in FIG. 15, the opening (260) to (260) that penetrates the bottom wall (26) from the inner surface to the outer surface is formed in the bottom wall (26) of the housing (2). . Here, each opening (260) has a shape elongated in the horizontal direction, and the three openings (260) to (260) are arranged in a row in the horizontal direction.
　図１６及び図１７はそれぞれ、筐体(２)の前面側ケース半体(210)を背面側上方及び背面側下方から見た斜視図である。図１６に示す様に（図８も参照）、筐体(２)の底面壁(26)には、その内面に、筐体外部へ排出せんとする水を開口(260)～(260)へ導くための第１の溝(261)が凹設されている。又、図１６及び図１７に示す様に、筐体(２)の左右一対の側面壁(27)(28)には、それらの内面にそれぞれ、筐体外部へ排出せんとする水を底面壁(26)上へ導くための第２の溝(271)(281)が形成されている。更に、図１７に示すように、筐体(２)の上面壁(29)には、その内面に、筐体外部へ排出せんとする水を側面壁(27)へ導くための第３の溝(291)が形成されている。 FIGS. 16 and 17 are perspective views of the front case half (210) of the housing (2) as viewed from the upper rear side and the lower rear side, respectively. As shown in FIG. 16 (see also FIG. 8), the bottom wall (26) of the housing (2) has water on its inner surface that drains outside the housing to the openings (260) to (260). A first groove (261) for guiding is recessed. Also, as shown in FIGS. 16 and 17, the pair of left and right side walls (27), (28) of the housing (2) has water on the inner surface of the bottom wall. (26) Second grooves (271) and (281) are formed to guide the top. Further, as shown in FIG. 17, the upper surface wall (29) of the housing (2) has a third groove on its inner surface for guiding water to be discharged outside the housing to the side wall (27). (291) is formed.
　図１４及び図１５に示す様に、筐体(２)の底面壁(26)には、各開口(260)の中央領域を塞ぐカバー部材(262)が着脱可能に取り付けられている。ここで、カバー部材(262)には、図１８に示す様に、開口(260)に嵌合することとなる嵌合部(263)が形成されており、該嵌合部(263)を開口(260)に嵌合させることにより、図１４に示す如く筐体(２)の底面壁(26)にカバー部材(262)が取り付けられる。 As shown in FIGS. 14 and 15, a cover member (262) for closing the central region of each opening (260) is detachably attached to the bottom wall (26) of the housing (2). Here, as shown in FIG. 18, the cover member (262) is formed with a fitting portion (263) that fits into the opening (260), and the fitting portion (263) is opened. By fitting with (260), the cover member (262) is attached to the bottom wall (26) of the housing (2) as shown in FIG.
　上記表示装置においては、図８及び図１５に示す如く筐体(２)の底面壁(26)からカバー部材(262)を取り外すことにより、各開口(260)から棒状の清掃具を筐体内部に挿入して、液晶表示パネル(１)の画面(10)に付着した塵を除去することが出来る。斯くして、上記表示装置は、筐体内部（液晶表示パネル(１)の画面(10)）の清掃が可能な構成を有している。尚、図示していないが、本実施形態においては、液晶表示パネル(１)の画面(10)上への清掃具の挿入を可能にするべく、押さえ金具(23)に開口が形成されている。 In the above display device, as shown in FIGS. 8 and 15, by removing the cover member (262) from the bottom wall (26) of the housing (2), a rod-shaped cleaning tool is placed inside the housing from each opening (260). The dust attached to the screen (10) of the liquid crystal display panel (1) can be removed. Thus, the display device has a configuration capable of cleaning the inside of the housing (the screen (10) of the liquid crystal display panel (1)). Although not shown in the drawings, in the present embodiment, an opening is formed in the presser fitting (23) so that the cleaning tool can be inserted onto the screen (10) of the liquid crystal display panel (1). .
　そして、清掃作業時以外のときは、図１４に示す如く筐体(２)の底面壁(26)にカバー部材(262)が取り付けられ、これにより、各開口(260)からの塵の侵入が抑制されることになる。又、底面壁(26)にカバー部材(262)が取り付けられたとき、各開口(260)の中央領域がカバー部材(262)によって塞がれる一方で、両端領域は露出したままとなる。従って、該露出した領域を排水口として機能させることが出来る。即ち、何らかの事情、例えば表示装置が屋外に設置されていてシール部材(24)が劣化することにより、筐体内部に水が浸入した場合、該水は、重力によって底面壁(26)上へ移動し、その後、各開口(260)の露出した領域（排水口）から排出されることになる。又、筐体(２)内に結露が発生した場合においても、結露した水は、重力によって底面壁(26)上へ移動し、その後、各開口(260)の露出した領域（排水口）から排出されることになる。斯くして、上記表示装置は、筐体内部に生じた水を筐体外部へ排出する排水構造を有している。尚、この様な排水構造は、本実施形態の表示装置が、筐体(２)内において空気が水平方向に流れる構成を有しているからこそ実現されるものである。 When the cleaning operation is not performed, a cover member (262) is attached to the bottom wall (26) of the housing (2) as shown in FIG. 14, thereby preventing dust from entering each opening (260). Will be suppressed. When the cover member (262) is attached to the bottom wall (26), the central region of each opening (260) is blocked by the cover member (262), while both end regions remain exposed. Therefore, the exposed area can function as a drain outlet. In other words, if water enters the housing due to some reason, for example, when the display device is installed outdoors and the seal member (24) deteriorates, the water moves onto the bottom wall (26) by gravity. Then, it is discharged from the exposed area (drainage port) of each opening (260). Even when condensation occurs in the housing (2), the condensed water moves on the bottom wall (26) due to gravity, and then from the exposed area (drain) of each opening (260). Will be discharged. Thus, the display device has a drainage structure for discharging water generated inside the housing to the outside of the housing. Such a drainage structure is realized because the display device of this embodiment has a configuration in which air flows in the horizontal direction in the housing (2).
　ここで、上記表示装置においては、側面壁(27)(28)の内面に第２の溝(271)(281)が形成され、上面壁(29)の内面に第３の溝(291)が形成されている。従って、何らかの事情により筐体内部に生じた水は、底面壁(26)上へ効率良く導かれる。又、底面壁(26)の内面に第１の溝(261)が形成されている。従って、底面壁(26)上の水は、各開口(260)の露出した領域（排水口）まで移動し易く、その結果、該領域（排水口）からは水が効率良く排出されることになる。 Here, in the display device, the second grooves (271) and (281) are formed on the inner surfaces of the side walls (27) and (28), and the third groove (291) is formed on the inner surface of the upper surface wall (29). Is formed. Therefore, water generated inside the casing for some reason is efficiently guided onto the bottom wall (26). A first groove (261) is formed on the inner surface of the bottom wall (26). Therefore, the water on the bottom wall (26) can easily move to the exposed area (drain) of each opening (260), and as a result, the water is efficiently discharged from the area (drain). Become.
　図１９は、上記表示装置の排水構造の変形例を示した断面図である。図１９に示す様に、第１の溝(261)は、底面壁(26)の内面に、該内面に沿って横方向に長く延びた***部(264)を設けることにより、該***部(264)と筐体(２)の前面壁(21)との間に形成されたものであってもよい。 FIG. 19 is a cross-sectional view showing a modification of the drainage structure of the display device. As shown in FIG. 19, the first groove (261) is provided with a raised portion (264) extending in the lateral direction along the inner surface of the bottom wall (26). 264) and the front wall (21) of the housing (2).
　尚、上記表示装置において、排水口となる開口(260)とは別に、筐体(２)の側面壁(27)(28)及び上面壁(29)の少なくとも何れかの壁に、棒状の清掃具を筐体内部に挿入するための開口が形成されると共に、該開口を塞ぐカバー部材が着脱可能に取り付けられていてもよい。 In the above display device, in addition to the opening (260) serving as a drainage port, at least one of the side walls (27), (28) and the upper surface wall (29) of the housing (2) has a rod-like cleaning. An opening for inserting the tool into the housing may be formed, and a cover member for closing the opening may be detachably attached.
　３．フィルタの交換を可能にした構成
　図２０は、吸気部(３)の分解斜視図である。図２０に示す様に、吸気部(３)の背部(31)には、一対の吸気側フィルタ(73)(73)をそれぞれ吸気部(３)内へ挿入するための一対の挿入窓(311)(311)が開設されている。ここで、上記表示装置は、各挿入窓(311)からの挿脱が可能な挿入具(32)を具えており、該挿入具(32)に吸気側フィルタ(73)が取り付けられている。 3. FIG. 20 is an exploded perspective view of the intake section (3). As shown in FIG. 20, a pair of intake windows (311) for inserting a pair of intake side filters (73), (73) into the intake section (3) are respectively provided in the back portion (31) of the intake section (3). ) (311) has been established. Here, the display device includes an insertion tool (32) that can be inserted and removed from each insertion window (311), and an intake side filter (73) is attached to the insertion tool (32).
　図２１は、挿入具(32)及び吸気側フィルタ(73)の分解斜視図である。図２１に示す様に、各挿入具(32)は、２つのケース半体(321)(321)を接合して構成された収容ケース(320)と、該収容ケース(320)を支持する支持体(322)とから構成されている。一方、各吸気側フィルタ(73)は、メッシュ(731)と、該メッシュ(731)よりも目の細かいフィルタ素材(732)とから構成されている。そして、挿入具(32)の収容ケース(320)には、メッシュ(731)とフィルタ素材(732)とが、これらを重ね合わせた状態で収容されている。 FIG. 21 is an exploded perspective view of the insertion tool (32) and the intake side filter (73). As shown in FIG. 21, each insertion tool (32) includes a storage case (320) formed by joining two case halves (321) and (321), and a support for supporting the storage case (320). It consists of a body (322). On the other hand, each intake side filter (73) includes a mesh (731) and a filter material (732) finer than the mesh (731). The mesh (731) and the filter material (732) are accommodated in the accommodating case (320) of the insertion tool (32) in a state where they are overlapped.
　又、図２１に示す様に、各挿入具(32)の支持体(322)には、上下一対の鍔部(323)(323)が形成されており、各鍔部(323)は、挿入具(32)がこれに対応する挿入窓(311)に挿入されたときに、吸気部(３)の背部(31)に当接することとなるものである。一方、図２０に示す様に、吸気部(３)の背部(31)には、各挿入窓(311)の形成領域の近傍に位置する上下２箇所に、アーム部(33)(33)が枢支されている。ここで、アーム部(33)(33)には、鍔部(323)が１つずつ対応している。又、挿入窓(311)に挿入具(32)が挿入されているとき、各アーム部(33)は、所定の回動角度にて、該アーム部(33)に対応する鍔部(323)に外側から重なり、これによって、図２２に示す如くアーム部(33)と吸気部(３)の背部(31)との間に鍔部(323)が挟み込まれ、その結果、挿入具(32)が、これに対応する挿入窓(311)に挿入された状態で、吸気部(３)に固定されることになる。 Further, as shown in FIG. 21, the support (322) of each insertion tool (32) is formed with a pair of upper and lower flanges (323) and (323), and each flange (323) is inserted into the support (322). When the tool (32) is inserted into the corresponding insertion window (311), it comes into contact with the back part (31) of the intake part (3). On the other hand, as shown in FIG. 20, on the back portion (31) of the air intake portion (3), there are arm portions (33) and (33) at two places, upper and lower, located in the vicinity of the formation region of each insertion window (311). It is pivotally supported. Here, one arm portion (323) corresponds to each arm portion (33) (33). In addition, when the insertion tool (32) is inserted into the insertion window (311), each arm portion (33) has a predetermined rotation angle and a collar portion (323) corresponding to the arm portion (33). Thus, as shown in FIG. 22, the hook part (323) is sandwiched between the arm part (33) and the back part (31) of the intake part (3) as shown in FIG. However, it is fixed to the intake portion (3) in a state of being inserted into the corresponding insertion window (311).
　更に、各アーム部(33)と吸気部(３)の背部(31)とには、アーム部(33)を前記所定の回転角度で吸気部(３)に係止し、アーム部(33)の回動を阻止する係止機構が設けられている。ここで、該係止機構は、吸気部(３)の背部(31)に設けられた係止突起(312)と、アーム部(33)の先端部に設けられていて係止突起(312)に係合する係止凹部(331)とから構成されている。斯くして、各挿入具(32)を、これに対応する挿入窓(311)に挿入した状態で吸気部(３)に固定する固定機構が、鍔部(323)と、アーム部(33)と、上記係止機構とによって構成されている。尚、各アーム部(33)の先端部には、ユーザ操作のための操作部(332)が設けられている。 Further, the arm portion (33) is locked to the intake portion (3) at the predetermined rotation angle between each arm portion (33) and the back portion (31) of the intake portion (3). A locking mechanism is provided to prevent the rotation. Here, the locking mechanism includes a locking projection (312) provided on the back portion (31) of the intake portion (3) and a locking projection (312) provided on the tip of the arm portion (33). It is comprised from the latching recessed part (331) engaged with. Thus, the fixing mechanism for fixing each insertion tool (32) to the intake portion (3) in a state of being inserted into the corresponding insertion window (311) includes the flange portion (323) and the arm portion (33). And the locking mechanism. In addition, the operation part (332) for user operation is provided in the front-end | tip part of each arm part (33).
　上記表示装置によれば、各挿入窓(311)から、これに対応する挿入具(32)が挿入されることによって、吸気側フィルタ(73)が吸気部(３)内に着脱可能に設置されることになる。ここで、各挿入窓(311)は、吸気部(３)の背部(31)に形成されている。従って、吸気部(３)の開口端部(30)にダクトが取り付けられている場合であっても、吸気側フィルタ(73)を容易に交換することが出来る。又、表示装置の背面側から吸気側フィルタ(73)を交換することが出来るので、サービスマン等のユーザにとって、吸気側フィルタ(73)の交換作業が容易となる。この様に表示装置の背面側からのフィルタ交換を可能にした構成は、特に、表示装置が自動販売機等の他の装置に内蔵されている場合に有効である。 According to the display device, the insertion side filter (73) is detachably installed in the intake portion (3) by inserting the corresponding insertion tool (32) from each insertion window (311). Will be. Here, each insertion window (311) is formed in the back part (31) of the intake part (3). Therefore, even when the duct is attached to the opening end (30) of the intake section (3), the intake side filter (73) can be easily replaced. In addition, since the intake side filter (73) can be replaced from the back side of the display device, it is easy for a service person or the like to replace the intake side filter (73). The configuration that enables the filter replacement from the back side of the display device in this way is particularly effective when the display device is built in another device such as a vending machine.
　又、上記表示装置によれば、上記固定機構の高さ寸法を小さく設計することが可能である。従って、上記表示装置は、その背面側から吸気側フィルタ(73)を交換する構成を有しているにも拘わらず、その厚さ寸法を大きくしなくて済む。 Moreover, according to the display device, it is possible to design the fixing mechanism with a small height. Therefore, the display device does not need to be increased in thickness although it has a configuration in which the intake side filter (73) is replaced from the back side.
　本実施形態においては、排気部(４)にも、吸気部(３)と同様の構成が採用されている。但し、排気部(４)に設けられる排気側フィルタ(74)は、メッシュのみから構成されている。 In the present embodiment, the exhaust unit (4) has the same configuration as the intake unit (3). However, the exhaust side filter (74) provided in the exhaust part (4) is comprised only from the mesh.
　４．フィルタの目詰まりを報知するための構成
　上記表示装置においては、吸気側フィルタ(73)に、該吸気側フィルタ(73)によって捕捉された塵が堆積することになる。塵の堆積量が増えると吸気側フィルタ(73)に目詰まりが生じ、これによって、筐体内部への空気の吸入が妨げられることになる。従って、吸気側フィルタ(73)に目詰まりが生じた場合、フィルタ交換が必要である一方で、交換時期を逸すると液晶表示パネル(１)の温度が過度に上昇し、これにより液晶表示パネル(１)の動作に異常が発生し易くなる。 4). Configuration for Notifying Filter Clogging In the above display device, dust trapped by the intake side filter (73) accumulates on the intake side filter (73). When the amount of accumulated dust increases, the intake filter (73) becomes clogged, and this prevents air from being sucked into the housing. Therefore, if the intake side filter (73) is clogged, it is necessary to replace the filter. On the other hand, if the time for replacement is overdue, the temperature of the liquid crystal display panel (1) rises excessively. Abnormality is likely to occur in the operation of 1).
　図２３は、上記表示装置について、フィルタの目詰まりを報知するための構成を示したブロック図である。図２３に示す様に、表示装置は、液晶表示パネル(１)の温度に応じて変化する温度情報を取得する温度センサ(81)と、吸気部(３)内を流れる空気の速度に応じて変化する風速情報を取得する風速センサ(82)と、吸気側フィルタ(73)の目詰まりを報知する報知部(83)と、温度センサ(81)により取得される温度情報及び風速センサ(82)により取得される風速情報に基づいて報知部(83)の報知動作を制御する制御部(84)と、各種情報が記録されるメモリ(85)とを具えている。 FIG. 23 is a block diagram showing a configuration for notifying filter clogging in the display device. As shown in FIG. 23, the display device includes a temperature sensor (81) that acquires temperature information that changes according to the temperature of the liquid crystal display panel (1), and a velocity of air that flows in the intake section (3). A wind speed sensor (82) for acquiring changing wind speed information, a notification section (83) for notifying clogging of the intake side filter (73), and temperature information and wind speed sensor (82) acquired by the temperature sensor (81) Is provided with a control unit (84) for controlling the notification operation of the notification unit (83) based on the wind speed information acquired by the above, and a memory (85) in which various types of information are recorded.
　ここで、図１０に示す様に、温度センサ(81)は、吸気側流路部(52)内にて液晶表示パネル(１)近傍の位置に設置されている。又、風速センサ(82)は、吸気部(３)内にて吸気側フィルタ(73)とファン(71)との間の位置に設置されている。尚、吸気側フィルタ(73)に目詰まりが生じると、液晶表示パネル(１)からの熱によって吸気側流路部(52)内の温度が、目詰まりがないときに比べて上昇し、又、吸気側フィルタ(73)を通過して排出される空気の速度が、目詰まりがないときに比べて大きくなる。 Here, as shown in FIG. 10, the temperature sensor (81) is installed in the vicinity of the liquid crystal display panel (1) in the intake-side flow path portion (52). Further, the wind speed sensor (82) is installed at a position between the intake side filter (73) and the fan (71) in the intake section (3). When the intake side filter (73) is clogged, the temperature in the intake side flow path (52) rises due to the heat from the liquid crystal display panel (1) as compared with the case where there is no clogging. The speed of the air discharged through the intake side filter (73) becomes larger than when there is no clogging.
　図２４は、図２に示されるＧ領域の拡大図である。図２４に示す様に、筐体(２)の背面壁(22)に、該背面壁(22)を内面から外面へ貫通する貫通孔(221)が形成されている。一方、報知部(83)は、ＬＥＤ（Light　Emitting　Diode）によって構成されており、筐体内部にて液晶表示パネル(１)の背面(12)側に設けられている。ここで、報知部(83)は、貫通孔(221)に向けられた姿勢を有している。従って、ユーザは、筐体(２)の背面側から貫通孔(221)を通じて、報知部(83)からの光を認識することが出来る。尚、筐体(２)の背面壁(22)には、図２４に示す様に、貫通孔(221)の形成領域近傍の位置に、液晶表示パネル(１)の画質等を調整する複数の調整ボタン(222)～(222)が設けられている。 FIG. 24 is an enlarged view of the G region shown in FIG. As shown in FIG. 24, a through-hole (221) that penetrates the rear wall (22) from the inner surface to the outer surface is formed in the rear wall (22) of the housing (2). On the other hand, the notification unit (83) is configured by an LED (Light Emitting Diode), and is provided on the back surface (12) side of the liquid crystal display panel (1) inside the housing. Here, the notification unit (83) has a posture directed to the through hole (221). Therefore, the user can recognize the light from the notification unit (83) through the through hole (221) from the back side of the housing (2). In addition, on the back wall (22) of the housing (2), as shown in FIG. 24, a plurality of liquid crystal display panels (1) for adjusting the image quality and the like at positions near the formation region of the through holes (221). Adjustment buttons (222) to (222) are provided.
　制御部(84)は、回路基板(11)上に構成されている。図２３に示す様に、制御部(84)は、温度センサ(81)により取得される温度情報に基づいて液晶表示パネル(１)の温度が所定温度より高いか否かを判定する第１判定部(841)と、風速センサ(82)により取得される風速情報に基づいて吸気部(３)内を流れる空気の速度が所定速度より大きいか否かを判定する第２判定部(842)とを含んでいる。 The control unit (84) is configured on the circuit board (11). As shown in FIG. 23, the control unit (84) determines whether or not the temperature of the liquid crystal display panel (1) is higher than a predetermined temperature based on the temperature information acquired by the temperature sensor (81). And a second determination unit (842) for determining whether or not the speed of the air flowing in the intake unit (3) is greater than a predetermined speed based on the wind speed information acquired by the wind speed sensor (82). Is included.
　ここで、上記表示装置を屋内又は屋外の一定位置に設置した後、該表示装置を最初に駆動させたとき、温度センサ(81)及び風速センサ(82)によって温度情報及び風速情報がそれぞれ取得され、これらの情報が初期情報としてメモリ(85)に記録される。又、上記所定温度及び所定速度は、初期情報に基づいて設定されるものであり、これらの情報もメモリ(85)に記録される。 Here, after the display device is installed at a certain position indoors or outdoors, when the display device is first driven, temperature information and wind speed information are respectively acquired by the temperature sensor (81) and the wind speed sensor (82). These pieces of information are recorded in the memory (85) as initial information. The predetermined temperature and the predetermined speed are set based on the initial information, and these information are also recorded in the memory (85).
　図２３に示す様に、制御部(84)は更に、第１判定部(841)と第２判定部(842)の判定結果に基づいて報知部(83)に報知動作の実行を指令する指令部(843)を含んでいる。具体的には、指令部(843)は、第１判定部(841)によって液晶表示パネル(１)の温度が所定温度より高いと判定されるか、又は、第２判定部(842)によって吸気部(３)内の空気の速度が所定速度より大きいと判定されたとき、報知部(83)に報知動作の実行を指令する。 As shown in FIG. 23, the control unit (84) further instructs the notification unit (83) to execute the notification operation based on the determination results of the first determination unit (841) and the second determination unit (842). Part (843). Specifically, the command unit (843) determines that the temperature of the liquid crystal display panel (1) is higher than a predetermined temperature by the first determination unit (841), or intakes the air by the second determination unit (842). When it is determined that the speed of the air in the section (3) is greater than the predetermined speed, the notification section (83) is instructed to perform a notification operation.
　報知部(83)は、指令部(843)からの指令を受けてＬＥＤを点灯又は点滅させることにより、吸気側フィルタ(73)の目詰まりを報知する。 The notification unit (83) notifies the clogging of the intake side filter (73) by turning on or blinking the LED in response to a command from the command unit (843).
　上記表示装置によれば、吸気側フィルタ(73)の目詰まり、即ち、吸気側フィルタ(73)の交換時期が到来していることを、報知部(83)によって報知することが出来る。ここで、ユーザは、筐体(２)の背面側から貫通孔(221)を通じて、報知部(83)からの光を認識することが出来る。従って、表示装置の背面を視認することが多いサービスマン等のユーザに、吸気側フィルタ(73)の目詰まりを容易に認識させることが出来る。 According to the above display device, the notification unit (83) can notify that the intake side filter (73) is clogged, that is, that it is time to replace the intake side filter (73). Here, the user can recognize light from the notification unit (83) through the through hole (221) from the back side of the housing (2). Therefore, a user such as a serviceman who often visually recognizes the back surface of the display device can easily recognize clogging of the intake side filter (73).
　又、上記表示装置によれば、吸気側フィルタ(73)に目詰まりが生じた直後にその状況を報知することが出来る。従って、吸気側フィルタ(73)の交換時期を逸して液晶表示パネル(１)の温度が過度に上昇することが防止されることになる。 Further, according to the display device, the situation can be notified immediately after the intake side filter (73) is clogged. Accordingly, it is possible to prevent the temperature of the liquid crystal display panel (1) from excessively rising due to the time for replacing the intake side filter (73).
　上記表示装置において、図１１に示す様に、排気側流路部(53)内にて液晶表示パネル(１)近傍の位置に別の温度センサ(86)を設置し、又、排気部(４)内にて排気側フィルタ(74)とファン(72)との間の位置に別の風速センサ(87)を設置し、該温度センサ(86)により取得される温度情報及び該風速センサ(87)により取得される風速情報に基づいて、排気側フィルタ(74)の目詰まりを報知部(83)によって報知してもよい。尚、排気側フィルタ(74)に目詰まりが生じると、液晶表示パネル(１)からの熱によって排気側流路部(53)内の温度が、目詰まりがないときに比べて上昇し、又、排気側フィルタ(74)を通過する直前の空気の速度が、目詰まりがないときに比べて小さくなる。 In the above display device, as shown in FIG. 11, another temperature sensor (86) is installed in the vicinity of the liquid crystal display panel (1) in the exhaust side flow path portion (53), and the exhaust portion (4 ), Another wind speed sensor (87) is installed at a position between the exhaust side filter (74) and the fan (72), and the temperature information acquired by the temperature sensor (86) and the wind speed sensor (87 ) May notify the clogging of the exhaust filter (74) by the notification unit (83). If the exhaust filter (74) is clogged, the temperature in the exhaust channel (53) rises due to the heat from the liquid crystal display panel (1), compared to when there is no clogging. The speed of air immediately before passing through the exhaust filter (74) is smaller than when there is no clogging.
　尚、本発明の各部構成は上記実施の形態に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能である。例えば、上記表示装置において、吸気側流路部(52)と排気側流路部(53)の内、一方の流路部が液晶表示パネル(１)の上面側を通過して延び、他方の流路部が液晶表示パネル(１)の下面側を通過して延びていてもよい。この場合、第１流路部(51)は、液晶表示パネル(１)の画面(10)上を鉛直方向に通過することになる。又、筐体(２)の背面壁(22)には、吸気部(３)と排気部(４)が上下に並んだ位置関係で設けられていてもよい。 The configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made within the technical scope described in the claims. For example, in the display device, one of the intake-side flow path portion (52) and the exhaust-side flow path portion (53) extends through the upper surface side of the liquid crystal display panel (1), and the other The flow path portion may extend through the lower surface side of the liquid crystal display panel (1). In this case, the first flow path portion (51) passes in the vertical direction on the screen (10) of the liquid crystal display panel (1). In addition, an intake portion (3) and an exhaust portion (4) may be provided on the rear wall (22) of the housing (2) in a vertical relationship.
　上記表示装置は、ファン(71)(72)の内、何れか一方のファンのみが設けられた構成を有していてもよい。又、上記表示装置において、制御部(84)は、温度センサ(81)及び風速センサ(82)の内、何れか一方のセンサが取得する情報のみに基づいて報知部(83)の報知動作を制御してもよい。 The display device may have a configuration in which only one of the fans (71) and (72) is provided. Further, in the display device, the control unit (84) performs the notification operation of the notification unit (83) based only on information acquired by any one of the temperature sensor (81) and the wind speed sensor (82). You may control.
　上記表示装置に採用した各種構成は、液晶表示パネルを具えた表示装置に限らず、プラズマ表示パネルや有機ＥＬ（Electro-Luminescence）表示パネル等、種々の表示パネルを具えた表示装置に適用することが出来る。 The various configurations employed in the display device are not limited to display devices having a liquid crystal display panel, but may be applied to display devices having various display panels such as plasma display panels and organic EL (Electro-Luminescence) display panels. I can do it.
(１)　液晶表示パネル（表示パネル）
(２)　筐体
(20)　画像表示窓
(３)　吸気部（通気部）
(30)　開口端部
(31)　背部
(311) 挿入窓
(312) 係止突起
(32)　挿入具
(323) 鍔部
(33)　アーム部
(331) 係止凹部
(４)　排気部（通気部）
(40)　開口端部
(５)　流路
(521) 空間
(623) 仕切部材
(71)　ファン
(72)　ファン
(73)　吸気側フィルタ
(74)　排気側フィルタ (1) Liquid crystal display panel (display panel)
(2) Case
(20) Image display window
(3) Air intake part (ventilation part)
(30) Open end
(31) Back
(311) Insertion window
(312) Locking protrusion
(32) Insertion tool
(323) Isobe
(33) Arm
(331) Locking recess
(4) Exhaust part (ventilation part)
(40) Open end
(5) Flow path
(521) Space
(623) Partition member
(71) Fan
(72) Fan
(73) Intake filter
(74) Exhaust side filter

Claims (7)

  1. 　表示パネルと、
    　該表示パネルを収容する筐体と、
    　該筐体に配備され、筐体の外部と内部とを互いに連通させる通気部であって、開口端部を側方へ向けた姿勢を有し、背部に挿入窓が開設された通気部と、
    　該通気部を通じて筺体内部又は筺体外部へ空気を導くファンと、
    　前記挿入窓から挿入し、通気部内へ着脱可能に設置されるフィルタと、
    　を具える表示装置。     A display panel;
    A housing for housing the display panel;
    A ventilation portion disposed in the casing and communicating with the outside and the inside of the casing, the ventilation end having a posture in which the opening end portion is directed to the side, and an insertion window is opened on the back;
    A fan for guiding air to the inside or outside of the housing through the ventilation portion;
    A filter that is inserted from the insertion window and is detachably installed in the ventilation portion;
    Display device.
  2. 　前記フィルタが取り付けられ、前記挿入窓から挿脱可能な挿入具と、
    　前記挿入窓に挿入具を挿入した状態で固定する固定機構と、を具え、
    　該固定機構は、
    　挿入具を挿入間に挿入した状態で通気部の背部と当接する位置に形成された鍔部と、
    　通気部の背部に枢支され、回動することで前記鍔部と重なり合って挿入具を固定するアーム部と、及び、
    　通気部の背部に設けられ、アーム部と鍔部が重なり合った状態でアーム部の回動を阻止する係止機構と、
    　を具える請求項１に記載の表示装置。     An insertion tool to which the filter is attached and is removable from the insertion window;
    A fixing mechanism for fixing the insertion tool inserted in the insertion window,
    The fixing mechanism is
    A collar portion formed at a position where it comes into contact with the back portion of the ventilation portion with the insertion tool inserted between the insertion portions;
    An arm part pivotally supported on the back part of the ventilation part and rotating to overlap the collar part and fix the insertion tool; and
    A locking mechanism that is provided on the back of the ventilation portion and prevents the arm portion from rotating in a state where the arm portion and the heel portion overlap each other;
    The display device according to claim 1, comprising:
  3. 　前記通気部は、前記筺体の２箇所に設けられており、一方の通気部から筺体内部へ吸入された空気が、表示パネルの前面を通過して、他方の通気部から筺体外部へ排出される請求項１に記載の表示装置。 The ventilation portions are provided at two locations of the housing, and air sucked into the housing from one ventilation portion passes through the front surface of the display panel and is discharged from the other ventilation portion to the outside of the housing. The display device according to claim 1.
  4. 　筐体内部に形成され、前記通気部から延びて表示パネルの表面に達する流路と、
    　該流路内に設けられ、前記通気部から表示パネルの表面へ通じる複数の空間に前記流路を仕切る仕切り部材と、
    　を有しており、
    　前記ファンは、前記流路内の１つの空間が対応するよう配備されている請求項１に記載の表示装置。     A flow path formed inside the housing and extending from the ventilation part to reach the surface of the display panel;
    A partition member that is provided in the flow path and partitions the flow path into a plurality of spaces that communicate from the ventilation portion to the surface of the display panel;
    Have
    The display device according to claim 1, wherein the fan is arranged so that one space in the flow path corresponds to the fan.
  5. 　前記筐体には、筐体の外部と内部とを連通させる第２の通気部が設けられ、
    　前記流路は、表示パネルの画面上を通って前記第２の通気部に達し、
    　前記仕切り部材は、前記流路の一部を、前記通気部から表示パネルの画面上へ通じる複数の空間に仕切る、
    　請求項４に記載の画像表示装置。     The casing is provided with a second ventilation portion that allows communication between the outside and the inside of the casing.
    The flow path passes through the screen of the display panel and reaches the second ventilation portion,
    The partition member partitions a part of the flow path into a plurality of spaces that communicate from the ventilation portion to the screen of the display panel.
    The image display device according to claim 4.
  6. 　表示パネルと、
    　該表示パネルを収容する筐体と、
    　該筐体に配備され、筐体の外部と内部とを互いに連通させる通気部と、
    　該通気部内に配備される複数のファンと、
    　筐体内部に形成され、前記通気部から延びて表示パネルの表面に達する流路と、
    　該流路内に設けられ、前記通気部から表示パネルの表面へ通じる複数の空間に前記流路を仕切る仕切り部材と、
    　を有しており、
    　前記ファンは、前記流路内の１つの空間が対応するよう配備される、
    　表示装置。     A display panel;
    A housing for housing the display panel;
    A ventilation portion arranged in the housing and communicating the outside and the inside of the housing with each other;
    A plurality of fans disposed in the ventilation portion;
    A flow path formed inside the housing and extending from the ventilation part to reach the surface of the display panel;
    A partition member that is provided in the flow path and partitions the flow path into a plurality of spaces that communicate from the ventilation portion to the surface of the display panel;
    Have
    The fan is arranged so that one space in the flow path corresponds.
    Display device.
  7. 　前記筐体には、筐体の外部と内部とを連通させる第２の通気部が設けられ、
    　前記流路は、表示パネルの画面上を通って前記第２の通気部に達し、
    　前記仕切り部材は、前記流路の一部を、前記通気部から表示パネルの画面上へ通じる複数の空間に仕切る、
    　請求項６に記載の画像表示装置。     The casing is provided with a second ventilation portion that allows communication between the outside and the inside of the casing.
    The flow path passes through the screen of the display panel and reaches the second ventilation portion,
    The partition member partitions a part of the flow path into a plurality of spaces that communicate from the ventilation portion to the screen of the display panel.
    The image display device according to claim 6.
PCT/JP2011/069380 2010-08-30 2011-08-29 Display device WO2012029683A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/780,433 US20130171921A1 (en) 2010-08-30 2013-02-28 Display device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010192575A JP2012048145A (en) 2010-08-30 2010-08-30 Image display device
JP2010-192575 2010-08-30
JP2010-192574 2010-08-30
JP2010192574A JP5598915B2 (en) 2010-08-30 2010-08-30 Image display device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/069378 Continuation-In-Part WO2012029681A1 (en) 2010-08-30 2011-08-29 Display device

Publications (1)

Publication Number Publication Date
WO2012029683A1 true WO2012029683A1 (en) 2012-03-08

Family

ID=45772771

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/069380 WO2012029683A1 (en) 2010-08-30 2011-08-29 Display device

Country Status (1)

Country Link
WO (1) WO2012029683A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111315184A (en) * 2019-11-28 2020-06-19 苏州佳世达电通有限公司 Electronic device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03265192A (en) * 1990-03-15 1991-11-26 Toshiba Lighting & Technol Corp Cooling device of electric apparatus
JPH0413982U (en) * 1990-05-24 1992-02-04
JPH0855567A (en) * 1994-06-09 1996-02-27 Canon Inc Image display device
JP2000356956A (en) * 1999-06-16 2000-12-26 Sony Corp Array type display device
JP2001063357A (en) * 1999-08-26 2001-03-13 Denso Corp Air conditioner
JP2006163217A (en) * 2004-12-10 2006-06-22 Mitsubishi Electric Corp Outdoor display device
JP2010038387A (en) * 2008-07-31 2010-02-18 Max Co Ltd Ventilation device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03265192A (en) * 1990-03-15 1991-11-26 Toshiba Lighting & Technol Corp Cooling device of electric apparatus
JPH0413982U (en) * 1990-05-24 1992-02-04
JPH0855567A (en) * 1994-06-09 1996-02-27 Canon Inc Image display device
JP2000356956A (en) * 1999-06-16 2000-12-26 Sony Corp Array type display device
JP2001063357A (en) * 1999-08-26 2001-03-13 Denso Corp Air conditioner
JP2006163217A (en) * 2004-12-10 2006-06-22 Mitsubishi Electric Corp Outdoor display device
JP2010038387A (en) * 2008-07-31 2010-02-18 Max Co Ltd Ventilation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111315184A (en) * 2019-11-28 2020-06-19 苏州佳世达电通有限公司 Electronic device

Similar Documents

Publication Publication Date Title
WO2011074455A1 (en) Image display device
US20130171921A1 (en) Display device
JP5415206B2 (en) Image display device
RU2005129649A (en) OVEN
JP2009216277A (en) Indoor unit for air-conditioning
JP5598915B2 (en) Image display device
WO2012029680A1 (en) Display device
WO2012029683A1 (en) Display device
WO2012099096A1 (en) Electronic device provided with fan filter unit
WO2012029681A1 (en) Display device
WO2012029682A1 (en) Display device
JP2012048140A (en) Image display device
JP2012048145A (en) Image display device
JP4760059B2 (en) Heat exchange ventilator
JP2012048141A (en) Image display device
US10139121B2 (en) Air conditioner
JP4963230B2 (en) Ventilation equipment
KR101607390B1 (en) Ventilation Device for a Display of an Elevator Hall Door
KR100805975B1 (en) The device for opening and closing a suction hole of air conditioner using gear
JP2008111617A (en) Air conditioner
JP2010048468A (en) Air conditioner
JP4604768B2 (en) Heat exchange ventilator
KR100773693B1 (en) The device for opening and closing a suction hole of air conditioner
JP5170213B2 (en) Heat exchange ventilator
JP7285948B2 (en) heat exchange ventilation system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11821699

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11821699

Country of ref document: EP

Kind code of ref document: A1